Trim Z-Frame II is available as Inside Mount only and provides your classic window molding overlapping the window edge. Perfect for windows that might be slightly out of square.
Elegance Z-Frame is available as Inside Mount only that is your traditional molding appearance with a larger overlap for those windows that are out of square where other Z or L frames will not work.
Standard L Frame II is available as Inside or Outside mount. The edge is contemporary and clean.
On Inside Mount applications, you will require a minimum unobstructed depth of 2". Caulking may be required to cover small light gaps on windows that are out of square.
On Outside Mount applications, you will need a minimum of 2" flat surface (wall space).
(outside mount shown in image). Thus, for an outside mount application make sure that the width and height measurements are more than 4" larger than the window recess.